E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > E46 BMW > General E46 Forum

General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

 
 
Thread Tools Search this Thread Rate Thread Display Modes
Prev Previous Post   Next Post Next
Old 11-29-2012, 01:39 PM   #1
fernando629
Registered User
 
Join Date: Jun 2012
Location: El Salvador
Posts: 52
My Ride: 325Xi 2001
Help me figure out multiplicative adaptation issue

Hi guys, first car is 2001 325xi, with 77K miles.

I've changed:
Fuel filter
All vacuum hoses
Both intake boots
Air Filter
CCV
Air filter box oring
CAM position sensor exhaust side

Cleaned:
ICV
Throttle body
Valve at SAP, replaced gasket
Resealed DISA

I've been battling codes P0171 and P0174, that seem to have gone away since I replaced my fuel filter. Before I replaced the fuel filter, I would reset my adaptations and the multiplicative adaptations would max out at 12% (both banks) within a day or two, SES would follow.

After replacing my fuel filter, the multiplicative adaptations take more than two weeks to max out at 12% (both banks). I ran with those values for about 2 days, but no longer get codes P0171 or P0174. SES no loger comes one either.


So, I'm not sure if what I looking at is still a vacuum leak, bad MAF, bad O2 sensors or if my pump is failing. I tested preassure at the rail about 2 months ago and it was above 50psi (don't remember the exact number).

Also, I'm getting codes: (from INPA)

65 Cam shaft position sensor (intake side)
Car has shut off about 3 times and this code has shown, error not present when pulled

18 Air mass sensor (is this code for the MAF or also for the CPS sensor?)
Error not present when pulled

What do you guys think?

Last edited by fernando629; 11-29-2012 at 02:09 PM.
fernando629 is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
 

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON





All times are GMT -5. The time now is 11:52 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use